Certified Engineering Geologist 1607, State of California
Registered Geologist 4850, State of California


B.A. Geology, U.C. Santa Barbara, 1980
M.S. Geology, San Jose State University, 1988


Slope Stability and Landslides,
Practical Slope Restoration Methods

University of Wisconsin, Madison, 1990

Seismic Hazards Analysis
AEG Short Course, 1997

Soil Stratigraphy for Trench Logging
AEG Short Course, 2000

Analysis of Landslides: Shear Strengths, Testing, and Stability Methods
ASCE Short Course, 2003


Member – Association of Engineering Geologists
Member – Geological Society of America


Consulting Engineering Geologist, 9/93 to Present

Conducting a variety of engineering geologic investigations as a private consultant on a contract basis. Specializing in fault investigations, landslide investigations, and engineering geologic investigations for new construction or repair of distressed properties.  Completed insurance evaluations regarding damage following the Northridge Earthquake.  Providing expert witness consultations for litigations. Developed new tools and techniques for cleaning and preparing fault investigation trenches.

Engeo, Inc., Senior Geologist 5/90 to 8/93

Conducted and supervised geotechnical studies of commercial and major residential developments in the San Francisco Bay Area. Investigations included: fault location studies, landslide hazard identification studies, and ground water basin analysis.

Upp Geotechnology, Inc., Project Geologist 1/86 to 4/90

Planned and managed geotechnical investigations, including: geologic hazards assessment, landslide evaluations and repairs, fault location studies, new hillside construction sites, distressed property, and environmental impact reports. Tasks included: project development, planning, field mapping, topographic mapping, aerial photographic analysis, literature review, subsurface exploration, supervision of staff, analysis of data, and report writing.

Upp Geotechnology, Inc., Staff Geologist 4/84 to 12/85

Field tasks included: field mapping, logging of exploration trenches and test borings, measurement of inclinometers, nuclear density testing, and collection of samples for a variety of geotechnical projects. Also performed laboratory tests of soil properties, analyzed data, and wrote reports.

U.S. Geological Survey, Physical Science Technician 11/80 to 12/85

Participated in design and construction of a laboratory model simulating debris flow landslide phenomena. Drafted maps and diagrams, and assisted Geologists in field.  Performed field and laboratory work in potassium-argon method of dating rocks.


  • Geology and Paleoseismology of the Blossom Hill Fault: Holocene Activity on a Range Front Fault in Los Gatos, California, in AEG Field Trip Guidebook, Seismic Hazard of the Range Front Thrust Faults, Northeastern Santa Cruz Mountains/Southwestern Santa Clara Valley, Association of Engineering Geologists, San Francisco Section, 2004.
  • Holocene Activity of a Range-Front Fault in the Southern San Francisco Bay Area, Abstract, in Proceedings of 46th Annual Meeting of the Association of Engineering Geologists, 2003.
  • Calaveras Fault Exposed, Abstract, in Proceedings of 43rd Annual Meeting of the Association of Engineering Geologists, 2000.
  • Debris Flow Hazard Identification Study, Tassajara Valley, Contra Costa County, California, in Proceedings of 35th Annual Meeting of the Association of Engineering Geologists, 1992.
  • Finding Fissures from the Loma Prieta Earthquake, Association of Engineering Geologists, AEG News, Volume 33, Number 1, 1990.
  • The Strawberry Creek and Pyramid Guard Station Landslides, Forest Service/USDA, Region 5, Earth Resources Monograph 14, 1988.
  • Two Recent Debris Flows Generated by Snowmelt in the Sierra Nevada, California, Abstract, in Proceedings of the 29th Annual Meeting of the Association of Engineering Geologists, 1986.